It's a matter of experimenting, but I would get rid of the jarring white borders. Either totally, or make the borders smaller and full instead of interrupting ones and maybe with a darker color that blends better with the background. Make the colors of the regions less colorful, I wouldn't use any shade of pink or purple. You could also make the regions blend in with the background if you get my meaning. But it's all a matter of experimenting with all that until you find a style that you like. The text is too jarring as well, to me anyway. I would make the text white without that block that surrounds it.